This directory, dists, is the canonical way to access the distributions.
Each distribution can be accessed by name or state from here.
oldoldstable, or wheezy - the released Debian 7.11
oldstable, or jessie - the released Debian 8.11
stable, or stretch - the released Debian 9.6
oldoldstable-proposed-updates - possible updates to Debian 7
oldstable-proposed-updates - possible updates to Debian 8
stable-proposed-updates - possible updates to Debian 9
wheezy-updates - important updates to Debian 7
jessie-updates - important updates to Debian 8
stretch-updates - important updates to Debian 9
testing, or buster - the development version of the next release
unstable, or sid - untested candidate packages for future releases
experimental, or rc-buggy - experimental packages to be used on top of unstable